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induction heating power supplies

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Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005838
EISBN: 978-1-62708-167-2
... and full-bridge inverters. Series resonant and parallel resonant circuits and their tuning calculations associated with output networks are also discussed. The article describes the frequency range of simultaneous dual-frequency induction heating power supply, and discusses the advantages, applications...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005836
EISBN: 978-1-62708-167-2
...-phase controlled bridge rectifier Fig. 12 A dc/dc converter, often called a buck converter, used in induction heating power supplies Fig. 13 Basic structure of voltage source inverter (VSI) Fig. 1 Induction heat treating application to anneal threads Fig. 2...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005843
EISBN: 978-1-62708-167-2
...Abstract Abstract This article provides a discussion on transformers and reactors for induction heating. It presents information on the initial considerations in the selection process and the demands of power supply and load circuits. The article describes the types of transformers and reactors...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005851
EISBN: 978-1-62708-167-2
... Fig. 1 (a) Water recirculating system for cooling an induction power supply including stainless steel pump, copper pipe, cartridge filter, nonferrous plate-type heat exchanger, and temperature control to prevent condensation. (b) Schematic of closed-loop water cooling system in (a) Fig...
Series: ASM Handbook
Volume: 4B
Publisher: ASM International
Published: 30 September 2014
DOI: 10.31399/asm.hb.v04b.a0005924
EISBN: 978-1-62708-166-5
... transformer for low-impedance induction coils. Similar circuits are used in high-frequency systems ( Fig. 16 ). Fig. 12 Power supply output at resonant frequency. SP, set point; LF, low frequency; HF, high frequency. Source: Ref 9 Fig. 24 Single-turn coils for static heating...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005888
EISBN: 978-1-62708-167-2
... Example of an induction bar/billet heating system that uses four large-size inverters supplying power to 12 inline coils. Courtesy of Inductotherm Heating & Welding Ltd., UK Fig. 22 Conventional surface-to-core temperature profiles of induction system for heating 64 mm (2.5 in.) diameter...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005839
EISBN: 978-1-62708-167-2
..., there is an intermediate body between the coil head (the part where the induction heat treating process is conducted) and the heat station, power supply, or quick-change adapter. This section of the inductor is referred to as the coil leads or busswork. The role of the coil leads or busswork is to mechanically...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005854
EISBN: 978-1-62708-167-2
... Fig. 1 Remote input/output (I/O) for power supply control Fig. 2 Power supply start-stop and status screen Fig. 3 Power supply control on simple machine Fig. 6 Part exiting coil developing scale Fig. 4 Infrared multiple-coil induction heating system...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005856
EISBN: 978-1-62708-167-2
... of Fusion Inc. Fig. 1 Induction heating power supply. Courtesy of Fusion Inc. Fig. 17 A part being induction heated at temperature and hence glowing. Courtesy of Fusion Inc. Fig. 18 Example of sealed chambers that hold oxide-reducing gases during induction brazing. Courtesy...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005849
EISBN: 978-1-62708-167-2
... the induction heating power supply based on a set of average billet temperatures. Fig. 12 Infrared pyrometer Extractor rolls are a set of rollers positioned at the exit of the coil line that support the heated billet as it exits the coil line and helps to pull the billet from the coil immediately...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005834
EISBN: 978-1-62708-167-2
... 10,000 V) made the vacuum tube oscillators more dangerous to work and maintain compared with much-lower-voltage solid-state power supplies ( Ref 1 ). Induction heating finds its greatest application in the metals processing industries ( Ref 1 , 2 , 3 , 4 ). Primary uses fall into the major...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005196
EISBN: 978-1-62708-187-0
... be switched from one furnace to the other while the above-mentioned operations take place. Utilization can also be improved by quickly charging and tapping to minimize waiting time and heat losses as well as by increasing the charge size. Today (2008), induction power supplies can operate two or more furnaces...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005895
EISBN: 978-1-62708-167-2
... of the induction skull melting technology using an inductor crucible Fig. 25 Starting process with metallic chips embedded in the material Fig. 26 Starting process with graphite ring Fig. 9 Principle of the power supply of (a) line frequency and (b) medium-frequency induction crucible...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005899
EISBN: 978-1-62708-167-2
... in a tandem plant. Courtesy of ABP Induction Systems Fig. 25 Diverting heat losses through (a) water-water heat exchanger, (b) enclosed cooling tower, and (c) air/water cooler Fig. 19 Power draw of a 6-pulse bridge circuit. Source: Ref 12 Fig. 20 Principle of tandem plants...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005841
EISBN: 978-1-62708-167-2
..., the part being heated, and the desired operating frequency, it may be necessary to have more inductance in the leads to be able to properly tune the power supply to the desired resonant frequency. Sufficient electrical insulation is required between coil leads to prevent arcing and corona. Typically...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001400
EISBN: 978-1-62708-173-3
...), and the power level of the magnetic field (i.e., the current in the coil). The advantages of induction heating include the ability to supply heat uniformly over the entire joint area while maintaining a localized temperature rise so heat sensitive materials or devices neighboring the joint are not damaged...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005902
EISBN: 978-1-62708-167-2
... supply for melting nonferrous metals. It concludes with an overview of the inductor cooling circuit. channel inductors engineering product design holding time induction channel furnace pouring furnaces power supplies protective coatings and linings refractory lining An induction channel...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005852
EISBN: 978-1-62708-167-2
... heat station c. Low-pressure/flow coil d. High-temperature power supply e. High-temperature heat station f. High-temperature coil g. Water resistivity low h. System filter needs change 3. Power supply energy output SOLID STATE...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003173
EISBN: 978-1-62708-199-3
... operate efficiently in a vacuum and are the primary power supply for vacuum melting. In channel induction furnaces ( Fig. 1 ), a small channel of molten metal surrounds the inductor coil. Only the small amount of metal in the inductor channel receives enough energy to be heated, and it is pumped out...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005850
EISBN: 978-1-62708-167-2
... induction heating coils power supplies programmable logic controllers quenching MAINTENANCE OF INDUCTION heating systems has long been ignored due to the assumption that “everything is fine as long as good workpieces are produced.” However, there are high costs associated with ignoring routine...